The royal revealed the news yesterday to the president of the LGBT association GLIFAA, Craig Petty, while visiting the American Embassy to sign a book of condolence for the victims of the shooting at the gay nightclub Pulse in Orlando.

"I told him what I do and he said he's going to be in Attitude magazine," he said. "I was really nervous about meeting the royal couple but they are both great at putting you at ease. I think it's great that they have come here today to show their support."

It marks the first time that the royal has appeared in a UK magazine, following quickly in the footsteps of his wife the Duchess of Cambridge making her Vogue magazine debut and the Queen appearing on the cover of Vanity Fair.

"The Duke of Cambridge is on the cover of the next issue of Attitude magazine speaking out against bullying," said a Kensington Palace in a statement. "In early May 2016, His Royal Highness met with a group of young LGBT people convened by Attitude magazine at Kensington Palace to listen to their experiences of bullying, and the mental health impacts it can have.The fight against bullying is a key priority of The Duke's work. His Royal Highness recently established a taskforce on the prevention of cyberbullying, and is leading the Heads Together campaign on mental health and wellbeing along with The Duchess of Cambridge and Prince Harry."

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